When you're at your desk, it can get annoying to keep grabbing your smartphone to send texts or transfer photos. So why not just do it from your PC instead?
AirDroid makes it possible: Once you've installed the app on your phone or tablet, you simply pull up web.airdroid.com on your PC's Web browser. From there, you can read and send texts, view your call logs, browse through your device's storage, and wirelessly transfer files between your Android device and computer. AirDroid can even activate your device's cameras and let you remotely peer through their lenses.
AirDroid works over both Wi-Fi and mobile data connections. The app itself is free to use, though some features require a $20/year premium subscription.